Pierre Samuel "P.S." du Pont (1870-1954) was an industrialist, entrepreneur, and philanthropist. He was president of E.I. du Pont de Nemours & Co. from 1915 to 1919 and chairman of the board of directors from 1919 to 1940. This small collection consists of four Christmas greetings letters from Pierre S. du Pont to Joseph H. Odell (1871-1929), pastor of the First Presbyterian Church of Troy, New York. Odell was the officiant at Pierre S. du Pont and Alice Belin's (1872-1944) wedding on October 16, 1915.